LASER ARTS QF-2 DLG Assembly Manual Download Page 20

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Copyright 2005 Laser Arts 

36.

 

Glue the ¼” sq. leading edge into place on each wing half, beveling the center parts to be flush to each other. 

37.

 

Insert the main 1/16” wing tips into place as shown. You may need to lightly sand in between the spars for it to fit. Make sure the 
trailing edge of the wing tip lines up with the wing trailing edge. 

38.

 

Use the extra 3/32” x 3/8” pieces included and glue them to the top and bottom of the wing tip in front of and behind the spars as 
shown below.                                     

 

 
39.

 

Glue the 1/16” Tip doublers in place on top of the wing tip as shown in the image below. 

 

 

40.

 

Sand the leading edge to shape. Sand the wing tips smooth and rounded on the outside. 

41.

 

Lightly sand the leading edge sheeting to make sure it’s nice and smooth. 

42.

 

Take one of the 50” pieces of CF. Start at one wingtip and glue it down over the spar on the top of the wing, using thin CA, starting 
at one wing tip and working your way to the other wing tip. Use some plastic wrap around your fingers to make sure it stays up 
against the sheeting and stays smooth. 

43.

 

Apply the other 50” length of CF to the bottom of the wing the same way as you did the top, one continuous piece from wingtip to 
wingtip. 

44.

 

Use a 0.100” drill bit (or slightly smaller if you do not have that size) and drill through the bottom of the front wing mount holes 
through the sheeting on the top of the wing. 

45.

 

Make sure the wing bolts fit smoothly through the bolt hole. After you are sure they are smooth, reinforce the holes with this CA 
(obviously without the bolts in there!) 

46.

 

Cover the wing with whatever covering material you have chosen. We recommend So-Lite, 1.5 mil Mylar, or something similar. 
Do not use a heavier covering material because you want to keep the plane as light as possible for the best flying performance. 

47.

 

Drill a hole in the wingtip as shown on the plans for the CF tube. Use a center punch to mark the center point so the drill bit does 
not slip. Rough up the Carbon Fiber throwing peg in the center with sandpaper and round off the ends. (DO NOT BREATHE THE 
CF DUST!!!!) Insert the CF peg through the hole and glue with epoxy. If you’re right handed, the peg goes in the left wing. 

 

Summary of Contents for QF-2 DLG

Page 1: ...ARTS www LaserArts com QF 2 DLG 50 Built up Discus Launch Glider Span 50 Wing Area 1 88 sq ft Weight 6 5 to 7 5 oz Wing Loading 3 46 to 4 0 oz sq ft Designed by Paul Daniels Kit by Laser Arts Instruct...

Page 2: ...erglass Cloth 2 ea x 50 CF Uni Web 1 ea x 20 CF Uni Web Recommended Items for Finishing 1 1 Roll Lightweight Covering So Lite or Similar 2 Epoxy Finishing Resin or water based Minwax Polycrylic Sugges...

Page 3: ...put into the design You ll also find building tips and a place to ask questions if you get stuck anywhere or want to chat with him or myself Please let us know about your experiences building and fly...

Page 4: ...3 Glue the 1 8 balsa formers F2 F3 F4 and F5 onto one fuselage side making sure they are 90 degrees to the fuselage side Make sure that the notch in F2 is facing UP the slots in F3 are towards the TOP...

Page 5: ...bottom is flush with the bottom of the fuselage sides Make sure you clean up any excess glue that seeped out 7 Glue the 1 8 balsa bottom to the fuselage assembly as shown below If there is a little e...

Page 6: ...nforcements as shown on the plan as the images below 11 Glue into place the triangle stock HORIZONTAL reinforcements as shown in the images below and on the plan 12 Glue 2 of the 1 8 balsa FRONT wing...

Page 7: ...piece Glue the CF strip to one side of the elevator as shown below 3 Skew the oz fiberglass to a bias as shown in the image below About 30 to 40 degrees from vertical This makes the finished parts st...

Page 8: ...evator 7 Sand a 45 degree bevel on the leading edge of the rudder It DOES matter which side you sand The tape hinge will be on the right side if you are right handed and on the left side if you are le...

Page 9: ...boom stronger Make sure the boom is dried before continuing 17 Glue the stab to the boom with the leading edge of the stab 5 5 16 forward of the boom end the smaller end of the boom We recommend using...

Page 10: ...section of the boom with WET sandpaper so the glue bond will be stronger After it has dried completely continue 4 Insert the boom assembly into the fuselage but do NOT glue it yet The boom should be...

Page 11: ...s You can also use scrap balsa to make a fairing on the rear of the fuselage if you want to but this is not necessary 5 Cut the canopy block at a 45 degree angle from back to front about from the fron...

Page 12: ...dried cut off the excess cloth using a sharp Exacto blade BUILDING THE WING 1 Remove the 3 32 and 1 8 wing braces from their sheets 2 Cut the remaining CF strip from the 24 piece into 4 separate 5 pi...

Page 13: ...with each other Glue the 2 larger 1 8 balsa rectangle pieces together Shown in the image below making sure they are flush 7 Lay out the plans on the workbench over a surface that you can press pins in...

Page 14: ...are flat behind the spar the ribs are vertical and pressed all the way onto the spar 12 Press the trailing edge into place starting with the outside trailing edge piece then the inside as shown in th...

Page 15: ...heeting and glue it to the ribs with thin CA making sure it is fully against the ribs You can do this as shown in the image below by using two finger to raise the sheeting on either side of the rib an...

Page 16: ...webs to make sure they are flush with the top spar This makes sure that the top wing sheeting will lie down properly on top of the spar Remove the wings from the building board 21 We will shape the t...

Page 17: ...ED UP PROPERLY Dry test fit everything before gluing anything Mix up some 30 minute epoxy Add some epoxy to the top and bottom of the laminated center balsa joiner and slide the left wing onto it Spre...

Page 18: ...Glue the larger of the laminated rectangles into place as shown in the image below making sure it is flush with the front and rear wing braces Make sure the center section is flat while gluing these i...

Page 19: ...e sheeting to the ribs by pressing the sheeting down and dripping thin CA down from the front MAKE sure you don t glue your fingers to the wing as some thin CA may come through the slots in the sheeti...

Page 20: ...s to make sure it stays up against the sheeting and stays smooth 43 Apply the other 50 length of CF to the bottom of the wing the same way as you did the top one continuous piece from wingtip to wingt...

Page 21: ...Make sure you glue it in VERY well as you did for the front wing mount block CONTROL WIRE INSTALLATION 1 There are a couple different things you can do for the pushrod housing You can use a continuous...

Page 22: ...300 MAh NiMH battery for the receiver battery To save weight plug the battery directly into the receiver making sure it is oriented properly 2 Install your battery and receiver so that the model bala...

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